'''
This file is part of DopplerShift.

    DopplerShift is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    DopplerShift is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with DopplerShift.  If not, see <http://www.gnu.org/licenses/>.
'''
class DSSingleton:
    instance = {}
    class_object = object
    def __init__(self, *args, **kwargs):
        if 'Instance' not in DSSingleton.instance: 
            self.instance['Instance'] = self.class_object(*args, **kwargs)
    
    def get(self):
        return self.instance['Instance']